/*-
 * <<
 * task
 * ==
 * Copyright (C) 2019 sia
 * ==
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * >>
 */

package com.sia.core.dag;

import java.util.List;
import java.util.Map;

/**
 *
 *
 * @description check if there is circle
 * @see
 * @author pengfeili23
 * @date 2018-06-27 5:49:32
 * @version V1.0.0
 **/
public class DAGHelper {

    private DAGHelper() {

    }

    public static List<String> findACycle(Map<String, List<String>> relyMap) {

        Digraph g = new Digraph(relyMap);
        DAGCheck check = new DAGCheck(g);
        return check.cycle();
    }

}
